Adjustable air guide device kinetic energy opening exhaust valve structure

Abstract

The utility model discloses adjustable air guide device kinetic energy opens exhaust valve structure, it includes built -in support, air inlet check valve, air guide nose pipe lower stake, soft adjustable nose pipe, check valve, filter box clamping position, adjustable air guide nozzle nest, mask main part, air filter box, mask seal edge and exhaust valve mounting hole. Main characteristics are in the inside of check valve setting air guide nose pipe lower stake and adjustable air guide nozzle nest, and in air guide nose pipe lower stake sleeve connection soft adjustable nose pipe. When people exhale waste gas from the mouth, nose, utilize adjustable air guide nozzle nest and the flow -guiding effect of soft adjustable nose pipe, rely on waste gas kinetic energy and directly open check valve, according to Bernoulli's principle will waste gas smoothly and take away the mouth before cavity part air, avoid waste gas residue. The application can solve the problem of hypoxia, filter cloth damp stink, inhale and exhale difficult and face hot uncomfortable when wearing the gauze mask or the mask, significantly improve the wearing experience.

Description

Technical Field

[0001] This utility model relates to the technical field of dust masks and dustproof face shields, and in particular to an adjustable air guiding device kinetic energy opening exhaust valve structure. Background Technology

[0002] Dust masks and face shields are widely used in industrial, medical, and daily protection applications. Their main function is to protect the respiratory health of users by filtering particulate matter or harmful substances from the air. However, existing dust masks and face shields have many design shortcomings, especially in terms of wearing comfort and breathing efficiency. For example, while medical flat masks leave less residual exhaust air in front of the mouth after wearing, they cannot achieve a tight seal around the mouth, making it difficult to achieve ideal dust protection. Other types of dust masks or face shields generally have a large cavity in front of the mouth, with some products even creating a residual exhaust air space of nearly 400 ml in front of the mouth. This design causes the user's exhaled exhaust air to first occupy the entire cavity before being discharged through the filter cloth or one-way exhaust valve. This results in the user inhaling exhaust air with an oxygen content of only 12-16%, far lower than the normal oxygen content of 21% in the air. Long-term wear of such masks can lead to hypoxia, causing symptoms similar to altitude sickness such as deeper and faster breathing, increased heart rate, dizziness, and headaches. In severe cases, it may even cause nausea, muscle weakness, and increased cardiac burden. Furthermore, because moisture in exhaled air cannot be expelled in time, it easily remains on the filter cloth or filter cotton, further clogging the filter pores, increasing inhalation resistance, and making it difficult for fresh air to enter, thus exacerbating the wearer's discomfort. Simultaneously, the accumulation of exhaust gas in the cavity in front of the mouth can cause a feeling of heat on the face, affecting heat dissipation and potentially causing odor problems. When people with different face shapes wear the same mask, the size difference in the cavity in front of the mouth significantly affects the wearing effect; those with larger faces have a larger cavity in front of the mouth, resulting in more residual exhaust gas and a more pronounced oxygen deficiency. Therefore, how to reduce residual exhaust gas in the cavity in front of the mouth, increase the oxygen content of each inhaled air, improve wearing comfort, and adapt to the needs of different face shapes has become an urgent technical challenge. This invention aims to solve the above problems through innovative design, providing a highly efficient and comfortable adjustable air-guiding device with a kinetic energy-activated exhaust valve structure. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable air guide device kinetic energy opening exhaust valve structure to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: The adjustable airflow device features a kinetic-operated exhaust valve structure, comprising the following main components: an internal support, an inlet one-way valve, a lower post for the nasal tube, a flexible adjustable nasal tube, a one-way exhaust valve, a filter cartridge holder, an adjustable mouthpiece, a mask body, an air filter cartridge, a mask sealing edge, and an exhaust valve mounting hole. The internal support is embedded inside the mask body, providing support and fixation for other components. The inlet one-way valve is mounted on the filter cartridge holder, opening when air is inhaled and closing when exhaled to ensure filtered and purified inhaled air. The lower post for the nasal tube is located inside the one-way exhaust valve and connects to the flexible adjustable nasal tube, guiding the exhaled waste air from the nostrils towards the one-way exhaust valve. The flexible adjustable nasal tube is located near the lower part of the nasal outlet and its position can be adjusted according to different face shapes to ensure smooth exhaust. The one-way exhaust valve is located on the mask body and fits tightly with the exhaust valve mounting hole, opening during exhalation to expel waste air. The air filter is installed on the outside of the mask. The filter box slot is used to install the air filter, ensuring that inhaled air is filtered and purified. The adjustable air guide nozzle is located inside the one-way exhaust valve, near the lips, and its position can be adjusted according to different face shapes to guide the exhaled airflow towards the one-way exhaust valve. The mask body includes a mask sealing edge that fits snugly against the face to prevent unfiltered air from entering. The air filter is installed on the filter box slot to filter inhaled air. The mask sealing edge fits snugly against the face to ensure the mask's airtightness. The exhaust valve mounting hole is used to install the one-way exhaust valve to ensure smooth exhaust of waste gas.

[0005] Furthermore, when the wearer exhales waste gas through their mouth and nose, the one-way exhaust valve is directly opened by the directional kinetic energy of the waste gas through the guiding effect of the adjustable air guide mouthpiece and the flexible adjustable nasal tube. The waste gas forms a negative pressure zone through high-speed flow, and according to Bernoulli's principle, it drives some of the air in the front cavity of the mouth to be expelled, thereby preventing waste gas from remaining in the front cavity of the mouth. In particular, the positions of the adjustable air guide mouthpiece and the flexible adjustable nasal tube can be adjusted according to the wearer's face shape to ensure that they are close to the lips and nostrils respectively, so as to improve the efficiency of waste gas diversion.

[0006] Specifically, the working principle of this utility model consists of the following steps: S1. Adjustment during wearing: Adjust the adjustable air inlet to a position close to the lips, and adjust the soft adjustable nose tube to a position close to the bottom of the nose air outlet.

[0007] S2. Inhalation process: The one-way exhaust valve is closed. Air enters the mouth and nose from the adjustable air inlet and around the soft adjustable nasal tube. At the same time, the air filtered by the air filter box opens the one-way intake valve due to negative pressure and replenishes the cavity in front of the mouth.

[0008] S3. Exhalation process: Exhaled air from the mouth or nose is conducted through the adjustable mouthpiece or soft adjustable nasal tube to the one-way exhaust valve, which opens immediately, allowing the exhaust air to be discharged smoothly, while also taking away some of the air in the front cavity of the mouth to avoid exhaust air residue.

[0009] Furthermore, the technical solution of this utility model has the following innovative points and specific implementation methods: The opening mechanism of the one-way exhaust valve is based on the directional kinetic energy of the exhaust gas, rather than the traditional pressure difference drive. Through the design of the adjustable air guide nozzle and the soft, adjustable nasal tube, exhaust gas can be directly conducted to the one-way exhaust valve, reducing energy loss and improving opening efficiency. Specifically, the soft, adjustable nasal tube and the lower stud of the air guide nasal tube adopt a sleeve structure, allowing axial adjustment to accommodate different face shapes; the adjustable air guide nozzle is made of elastic material, and its height can be adjusted via a mechanical adjustment mechanism to ensure it always stays close to the wearer's lips.

[0010] Furthermore, this invention offers a variety of possibilities in terms of material selection and appearance design. The adjustable air nozzle and the lower stud of the air nasal tube can be made of rigid plastic, silicone, or other flexible materials to meet different strength and comfort requirements. The appearance can be optimized according to the actual application, for example, by adopting a streamlined structure to reduce wind resistance. In addition, the connection between the flexible adjustable nasal tube and the lower stud of the air nasal tube can be achieved through various methods such as threaded engagement, snap-fit ​​connection, or elastic sleeve, to enable quick disassembly and assembly.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention significantly improves the wearing experience and usability. Through optimized exhaust gas flow path design, each inhaled air is fresh air with an oxygen content of 21%, solving the oxygen deficiency problem caused by prolonged mask wearing. Exhaust gas is directly discharged through a one-way exhaust valve, preventing moisture from remaining on the filter cloth and keeping it dry to prevent odor. Furthermore, the exhaust gas also carries away some air from the cavity in front of the mouth, increasing airflow, preventing the accumulation of hot and humid air, and alleviating facial discomfort caused by heat.

[0012] This invention is applicable to all dust masks, foldable dust masks, fish-shaped masks, and pot-shaped masks with a large cavity in front of the mouth. The kinetic energy-activated exhaust valve structure can be generated on the built-in support or combined with the air filter cloth of foldable masks, fish-shaped masks, and pot-shaped masks, thus having wide applicability.

[0013] Various modifications can be made according to actual needs. For example, the one-way exhaust valve, built-in bracket, and adjustable air guide nozzle can be designed as an integrally formed structure or a flexibly disassembled assembly structure; the structural form of the air guide nose tube lower post and the adjustable air guide nozzle can be adjusted according to specific application scenarios, such as integral molding or modular assembly.

[0014] Through the above technical solution, this utility model achieves effective management of exhaust gas in the mouth cavity, solves many problems existing in the wearing process of existing dust masks and face masks, and significantly improves wearing comfort and functionality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] The attached figures are labeled as follows: 1—Built-in bracket; 2—Inlet one-way valve; 3—Nose tube lower post; 4—Soft adjustable nose tube; 5—One-way exhaust valve; 6—Filter box holder; 7—Adjustable air nozzle socket; 8—Mask body; 9—Air filter box; 10—Mask sealing edge; 11—Exhaust valve mounting hole. Detailed Implementation

[0017] The specific implementation method of the adjustable air guiding device kinetic energy opening exhaust valve structure of this utility model will be combined with the appendix. Figure 1 and attached Figure 2 This technical solution is applicable to dust masks and respirators, including but not limited to foldable masks, fish-shaped masks, and pot-shaped masks. By optimizing the exhaust gas flow path and utilizing Bernoulli's principle to achieve efficient opening of the one-way exhaust valve, it ensures that each inhaled air is fresh air with an oxygen content of 21%, thereby solving problems such as residual exhaust gas in the mouth cavity, oxygen deficiency, damp and smelly filter cloth, difficulty in inhaling and exhaling, and facial burning discomfort that exist in existing products during wear.

[0018] like Figure 1The diagram shows a three-dimensional structural representation of this invention applied to a dust mask. An internal bracket 1 is embedded within the mask body 8 to form an integrated structure, providing support and fixation. A one-way exhaust valve 5 is installed on the exhaust valve mounting hole 11 and fits tightly to ensure no leakage during exhaust. A nasal tube lower post 3 is located inside the one-way exhaust valve 5, with a flexible adjustable nasal tube 4 fitted onto it to guide the exhaust air exhaled from the nostrils towards the one-way exhaust valve 5. An adjustable mouthpiece 7 is also located inside the one-way exhaust valve 5 and near the lips, guiding the exhaust air exhaled from the mouth directly to the one-way exhaust valve 5. An air filter box 9 is installed on the filter box slot 6. The intake one-way valve 2 controls the opening during air intake and closing during exhalation, ensuring that the inhaled air is filtered and purified before entering the mouth cavity. The mask sealing edge 10 fits tightly against the face to prevent unfiltered air from entering and ensure the mask's airtightness.

[0019] When the wearer begins to use this invention, they first need to adjust the positions of the adjustable air-conducting mouthpiece 7 and the soft adjustable nose tube 4 according to their face shape. Specifically, the adjustable air-conducting mouthpiece 7 is adjusted to a position close to the lips to ensure it can effectively capture exhaled air from the mouth; the soft adjustable nose tube 4 is adjusted to a position close to the area below the nostrils to accurately receive exhaled air from the nasal passages. This adjustment mechanism makes this invention suitable for users with different face shapes, solving the problem of discomfort caused by traditional masks due to differences in face shape.

[0020] Once worn, the inhalation process begins. At this time, the one-way exhaust valve 5 is closed, and outside air enters the mouth and nose area through the gaps around the adjustable air inlet 7 and the soft adjustable nose tube 4. Simultaneously, due to negative pressure, air in the air filter box 9 flows into the mouth cavity through the one-way inlet valve 2, replenishing fresh air. This design ensures that the inhaled air is filtered and purified before entering the body, avoiding direct contact with unfiltered air.

[0021] The exhalation process is the core working step of this invention. When the wearer exhales waste gas from their mouth, the waste gas, with its higher pressure and flow rate, is directly transferred to the one-way exhaust valve 5 via the adjustable air inlet 7. The high-speed flow of waste gas creates a negative pressure zone, which, according to Bernoulli's principle, expels some of the air in the cavity in front of the mouth. Similarly, when the wearer exhales waste gas from their nose, the waste gas, with its higher pressure and flow rate, is directly transferred to the one-way exhaust valve 5 via the flexible adjustable nasal tube 4, causing it to open immediately and expel the waste gas smoothly. This mechanism not only achieves rapid expulsion of waste gas but also avoids waste gas residue in the cavity in front of the mouth by removing some of the air. Simultaneously with the expulsion of waste gas, the air in the cavity in front of the mouth is renewed, ensuring that each inhaled air is fresh air with an oxygen content of 21%.

[0022] In practical applications, the technical solution of this utility model has multiple possibilities for adaptation. For example, the kinetic energy-opening exhaust valve structure, consisting of the one-way exhaust valve 5, the lower post of the air-guiding nose tube 3, and the adjustable air-guiding nozzle socket 7, can be generated on the built-in support 1 or combined on the air filter cloth of folding masks, fish-shaped masks, and pot-shaped masks. This flexibility makes this utility model applicable to various types of dust masks and face shields, expanding its application range. In addition, the one-way exhaust valve 5, the built-in support 1, and the adjustable air-guiding nozzle socket 7 can be designed as an integrally generated structure or a flexibly disassembled assembly structure, facilitating production and maintenance. The adjustable air-guiding nozzle socket 7 is made of soft material, and together with the soft lower post of the air-guiding nose tube 3 and the soft adjustable nose tube 4, it can meet the personalized needs of different users. The structural form of the lower post of the air-guiding nose tube 3 and the adjustable air-guiding nozzle socket 7 can be adjusted according to specific application scenarios, such as integrated molding or modular assembly, further improving the adaptability and functionality of the product.

[0023] The working principle of this invention is based on the directional kinetic energy of exhaust gas rather than the traditional pressure difference drive. Through the design of the adjustable air guide nozzle 7 and the soft, adjustable nose tube 4, exhaust gas can be directly conducted to the one-way exhaust valve 5, reducing energy loss and improving opening efficiency. The soft, adjustable nose tube 4 and the lower anchor 3 of the air guide nose tube adopt a sleeve structure, allowing axial adjustment to adapt to the needs of different face shapes. The adjustable air guide nozzle 7 is made of elastic material, and its height can be adjusted via a mechanical adjustment mechanism to ensure it is always close to the wearer's lips. This design significantly improves exhaust gas flow efficiency and solves the problem of poor exhaust caused by slow valve opening in traditional masks.

[0024] In terms of material selection and appearance design, this utility model offers a variety of possibilities. The adjustable air nozzle socket 7 and the lower air tube post 3 can be made of rigid plastic, silicone, or other flexible materials to meet different strength and comfort requirements. The appearance can be optimized according to the actual application, for example, by adopting a streamlined structure to reduce wind resistance. Furthermore, the connection between the flexible adjustable nose tube 4 and the lower air tube post 3 can be achieved through various methods such as threaded engagement, snap-fit ​​connection, or elastic sleeve, enabling quick disassembly and assembly. These design details not only enhance the product's practicality but also improve the user experience.

[0025] This invention significantly improves the wearing experience and usability. Through optimized exhaust gas flow path design, each inhaled air is fresh air with an oxygen content of 21%, solving the oxygen deficiency problem caused by prolonged mask wearing. Exhaust gas is directly discharged through a one-way exhaust valve 5, preventing moisture from remaining on the filter cloth and keeping it dry to prevent odor. Furthermore, the exhaust gas also carries away some air from the cavity in front of the mouth, increasing airflow, preventing the accumulation of hot and humid air, and alleviating facial discomfort. This design is particularly suitable for scenarios involving prolonged mask wearing, such as industrial production environments, medical facilities, or daily protection.

[0026] Through the above technical solution, this utility model achieves effective management of exhaust gas in the mouth cavity, solves many problems existing in the wearing process of existing dust masks and face masks, and significantly improves wearing comfort and functionality. This utility model is not only applicable to dust masks, but can also be widely used in various types of dust masks, including folding masks, fish-shaped masks, and pot-shaped masks, etc., and has broad applicability and market prospects.

[0027] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An adjustable air-guiding device with kinetic energy to open the exhaust valve structure, characterized in that, include: A face mask body, the face mask body including a face mask sealing edge; A one-way exhaust valve installed on the main body of the mask; An adjustable air guide nozzle is disposed inside the one-way exhaust valve. The adjustable air guide nozzle can be adjusted to be close to the wearer's lips and is configured to guide the waste air exhaled from the mouth toward the one-way exhaust valve. The lower post of the air nasal tube is installed inside the one-way exhaust valve; A soft, adjustable nasal tube is fitted to the lower post of the air-guiding nasal tube. The soft, adjustable nasal tube can be adjusted to be close to the wearer's nasal air outlet and is configured to guide the waste gas exhaled from the nostrils toward the one-way exhaust valve. The one-way exhaust valve is configured to be opened directly by the directional kinetic energy of the exhaust gas guided by the adjustable air guide nozzle and the flexible adjustable nasal tube, and the negative pressure zone formed when the exhaust gas flows at high speed drives some of the air in the cavity in front of the nozzle to be discharged.

2. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 1, characterized in that, The flexible adjustable nasal tube and the lower post of the air-guiding nasal tube are connected by a sleeve structure, allowing axial adjustment to suit the needs of wearers with different face shapes.

3. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 1, characterized in that, The adjustable air guide nozzle is made of elastic material, and its height can be adjusted by a mechanical adjustment mechanism.

4. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 1, characterized in that, It also includes a built-in bracket that is embedded inside the mask body and provides support; as well as a filter cartridge holder, an air intake one-way valve, and an air filter cartridge.

5. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 1, characterized in that, The adjustable air guide nozzle socket and the lower post of the air guide nose tube can be made of rigid plastic or silicone.

6. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 2, characterized in that, The connection between the flexible adjustable nasal tube and the lower post of the air-guiding nasal tube is a threaded fit, a snap-fit ​​connection, or an elastic sleeve.

7. The adjustable air guiding device kinetic energy opening exhaust valve structure according to claim 4, characterized in that, The one-way exhaust valve, the built-in bracket, and the adjustable air guide nozzle can be designed as an integrally formed structure or a flexibly disassembled assembly structure.

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